Abstract
A new species of Parmotrema with characteristic yellow medulla is described as new to science. The new species P. sahyadrica has a densely isidiate thallus with 6-10 mm wide lobes and contains entothein and atranorin as major compounds. The material was collected from Wayanad district of Kerala state at an elevation of 750 m.
References
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<p>Awasthi, D.D. (2007) <em>A Compendium of the Macrolichens from India, Nepal and Sri Lanka.</em> Bishen Singh Mahendra Pal Singh, Dehradun, India. 580 pp.</p>
<p>Blanco, O., Crespo, A., Divakar, P.K., Elix, J.A. & Lumbsch, H.T. (2005) Molecular phylogeny of Parmotremoidlichens (Ascomycota, Parmeliaceae). <em>Mycologia </em>97 (1): 150–159. https://doi.org/10.1080/15572536.2006.11832848</p>
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<p>Culberson, C.F. (1972) Improved conditions and new data for the identification of lichen products by a standardized thin-layer chromatographic method. <em>Journal of Chromatography </em>72: 113–125. https://doi.org/10.3406/linly.1952.7511</p>
<p>Divakar, P.K. & Upreti, D.K. (2005) <em>Parmelioid lichens in India (a revisionary study)</em>. Bishen Singh Mahendra Pal Singh, Dehradun, India. 488 pp.</p>
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<p>Hale, M.E. (1974a) New combinations in the lichen genus <em>Parmotrema</em> Massalongo. <em>Phytologia</em> 28: 334–339.</p>
<p>Hale, M.E. (1974b) Notes on species of <em>Parmotrema </em>(Lichenes: <em>Parmeliaceae</em>) containing yellow pigments.<em> Mycotaxon</em> 1: 105–116.</p>
<p>Hale, M.E. (1977) New species in the lichen genus <em>Parmotrema </em>Mass. <em>Mycotaxon </em>5 (2): 432–448.</p>
<p>Hillmann, J. (1940) Neue oder wenig bekannte Flechten aus aller Welt. II.<em> Feddes Repertorium </em>48 (1–3): 5–11. https://doi.org/10.1002/fedr.4870480104</p>
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<p>Kurokawa, S. & Lai, M.J. (2001) Parmelioid lichen genera and species in Taiwan. <em>Mycotaxon </em>77: 225–284.</p>
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<p>Mishra, G.K. & Upreti, D.K. (2017) The lichen genus <em>Parmotrema </em>A. Massal. (Lecanorales, Ascomycota) from India with addition distributional records. <em>Cryptogam Biodiversity and Assessment</em> 2 (2): 18–40. https://doi.org/10.21756/cab.v2i02.11117</p>
<p>Nees Von Esenbeck, C.G.D. & Von Flotow, J. (1835) Einige neue Flechtenarten. <em>Linnaea </em>9 (4): 495–502.</p>
<p>Orange, A., James, P.W. & White, F.J. (2001) <em>Microchemical methods for the identification of lichens.</em> British Lichen Society, London. 101 pp.</p>
<p>Purushothaman, D., Nayaka, S. & Thomas, J. (2021) Some new records of lichens from the Goodrical Reserve Forest, Pathanamthitta district of Kerala. <em>Kavaka</em> 56: 65–68.</p>
<p>Räsänen, V. (1940) Lichenes ab A. Yasuda et aliis in Japonia collecti (I). <em>The Journal of Japanese Botany</em> 16: 139–153.</p>
<p>Singh, K.P. & Sinha, G.P. (2010) <em>Indian Lichen</em>: <em>An Annotated checklist. </em>Botanical Survey of India, Kolkata. 571 pp.</p>
<p>Sipman, H.J.M. (2005) Mason Hale’s key to <em>Parmotrema</em>, revised edition: key to wide-lobed parmelioid species occurring in Tropical America (genera <em>Canomaculina</em>, <em>Parmotrema</em>, <em>Rimelia</em>, <em>Rimeliella</em>). Available from: http://www.bgbm.org/sipman/keys/neoparmo.htm (Last update 28 October 2005; accessed October 2008)</p>
<p>Sequiera, S. (2003) <em>Taxonomy and ecology of lichens of Silent Valley National Park, southern Western Ghats, India</em>. Ph.D. Thesis. FRI, Dehra Dun, India.</p>
<p>Spielmann, A.A. (2009) <em>Estudos taxonômicos em Parmotrema s.l. (Parmeliaceae, Ascomycota liquenizados) com ácido salazínico.</em> PhD. Thesis. Sao Paulo. 152 pp.</p>
<p>Stirton, J. (1877–1878) On certain lichens belonging to the genus <em>Parmelia</em>. <em>Scottish Naturalist </em>4: 200–203, 252–254, 298–299.</p>
<p>Taylor, T. (1836) The Musci, Hepaticae and Lichenes. <em>In:</em> Mackay, J.T. (Ed.) <em>Flora Hibernica</em>. William Curry Jun and Company, Dublin, 156 pp.</p>
<p>Taylor, T. (1847) New lichens, principally from the Herbarium of Sir William J. Hooker. <em>The London Journal of Botany </em>6: 148–197.</p>
<p>Walker, F.J. & James, P.W. (1980) A revised guide to microchemical techniques for the identification of lichen products. <em>British Lichen Society Bulletin </em>46 (Supplement): 13–29.</p>
<p>Zahlbruckner, A. (1926) <em>Lichenes, Spezieller Teil.</em> <em>In</em>: Engler, A. & Prantl, K. (Eds.) <em>Die natürlichen Pflanzenfamilien</em>, 2nd ed. v. 8. Wilhelm Engelmann, Leipzig. 270 pp.</p>
<p>Zahlbruckner, A. (1930) <em>Catalogus lichenum universalis</em>. v. 6. Gebrüder Borntraeger, Leipzig. 618 pp.</p>
<p>Awasthi, D.D. (2007) <em>A Compendium of the Macrolichens from India, Nepal and Sri Lanka.</em> Bishen Singh Mahendra Pal Singh, Dehradun, India. 580 pp.</p>
<p>Blanco, O., Crespo, A., Divakar, P.K., Elix, J.A. & Lumbsch, H.T. (2005) Molecular phylogeny of Parmotremoidlichens (Ascomycota, Parmeliaceae). <em>Mycologia </em>97 (1): 150–159. https://doi.org/10.1080/15572536.2006.11832848</p>
<p>Benatti, M.N. & Marcelli, M.P. (2009) Espécies de <em>Parmotrema </em>(Parmeliaceae, Ascomycetes liquenizados) commedula pigmentada do litoral centro-sul do Estado de São Paulo. <em>Hoehnea</em> 36 (4): 597–612. https://doi.org/10.1590/S2236-89062009000400003</p>
<p>Choisy, M. (1952) Catalogue des lichens de la region lyonnaise. Fasc. 9. <em>Bulletin mensuel de la Société Linnéenne de Lyon et des Société Botanique de Lyon </em>21: 165–180.</p>
<p>Culberson, C.F. (1972) Improved conditions and new data for the identification of lichen products by a standardized thin-layer chromatographic method. <em>Journal of Chromatography </em>72: 113–125. https://doi.org/10.3406/linly.1952.7511</p>
<p>Divakar, P.K. & Upreti, D.K. (2005) <em>Parmelioid lichens in India (a revisionary study)</em>. Bishen Singh Mahendra Pal Singh, Dehradun, India. 488 pp.</p>
<p>Dodge, C.W. (1959) Some lichens of tropical Africa, III. Parmeliaceae. <em>Annals of the Missouri Botanical Garden</em> 46: 39–193. https://doi.org/10.2307/2394567</p>
<p>Elix, J.A. (1993) Progress in the generic delimitation of <em>Parmelia </em>sensu lato, lichens (Ascomycotina: Parmeliaceae) and a synoptic key to Parmeliaceae. <em>Bryologist</em> 96: 359–383. https://doi.org/10.2307/3243867</p>
<p>Hale, M.E. (1965) A monograph of <em>Parmelia</em> subgenus <em>Amphigymnia</em>. <em>Contributions from the United States National Herbarium</em> 36: 193–358.</p>
<p>Hale, M.E. (1974a) New combinations in the lichen genus <em>Parmotrema</em> Massalongo. <em>Phytologia</em> 28: 334–339.</p>
<p>Hale, M.E. (1974b) Notes on species of <em>Parmotrema </em>(Lichenes: <em>Parmeliaceae</em>) containing yellow pigments.<em> Mycotaxon</em> 1: 105–116.</p>
<p>Hale, M.E. (1977) New species in the lichen genus <em>Parmotrema </em>Mass. <em>Mycotaxon </em>5 (2): 432–448.</p>
<p>Hillmann, J. (1940) Neue oder wenig bekannte Flechten aus aller Welt. II.<em> Feddes Repertorium </em>48 (1–3): 5–11. https://doi.org/10.1002/fedr.4870480104</p>
<p>Jacquin, N.J.F. (1786) <em>Collectanea ad botanicam, chemiam, et historiam naturalem spectantia.</em> Ex officina Wappleriana, Vindobonae, 1: 116.</p>
<p>Kumar, M.S.M (2000) <em>Lichen (Macrolichen) flora of Kerala part of Western Ghats</em>. KFRI Research Report 194. Kerala Forest Research Institute, Peechi, Kerala, India. 186 pp.</p>
<p>Kurokawa, S. & Lai, M.J. (2001) Parmelioid lichen genera and species in Taiwan. <em>Mycotaxon </em>77: 225–284.</p>
<p>Linnaeus, C. (1753) <em>Species Plantarum</em>. Vol. 1. Stockholm. 560. pp.</p>
<p>Lynge, B. (1914) Die Flechten der ersten Regnellschen Expedition. Die gattungen <em>Pseudoparmelia </em>gen. nov. und <em>Parmelia </em>Ach. <em>Arkiv för Botanik </em>13 (13): 1–172.Massalongo, A. (1860) Esame comparativo di alcuni generi di licheni. Atti del I.L.R. <em>Istituto Veneto di Scienze, Lettere ed Arti</em> 5: 247–267, 313–337.</p>
<p>Mishra, G.K. & Upreti, D.K. (2017) The lichen genus <em>Parmotrema </em>A. Massal. (Lecanorales, Ascomycota) from India with addition distributional records. <em>Cryptogam Biodiversity and Assessment</em> 2 (2): 18–40. https://doi.org/10.21756/cab.v2i02.11117</p>
<p>Nees Von Esenbeck, C.G.D. & Von Flotow, J. (1835) Einige neue Flechtenarten. <em>Linnaea </em>9 (4): 495–502.</p>
<p>Orange, A., James, P.W. & White, F.J. (2001) <em>Microchemical methods for the identification of lichens.</em> British Lichen Society, London. 101 pp.</p>
<p>Purushothaman, D., Nayaka, S. & Thomas, J. (2021) Some new records of lichens from the Goodrical Reserve Forest, Pathanamthitta district of Kerala. <em>Kavaka</em> 56: 65–68.</p>
<p>Räsänen, V. (1940) Lichenes ab A. Yasuda et aliis in Japonia collecti (I). <em>The Journal of Japanese Botany</em> 16: 139–153.</p>
<p>Singh, K.P. & Sinha, G.P. (2010) <em>Indian Lichen</em>: <em>An Annotated checklist. </em>Botanical Survey of India, Kolkata. 571 pp.</p>
<p>Sipman, H.J.M. (2005) Mason Hale’s key to <em>Parmotrema</em>, revised edition: key to wide-lobed parmelioid species occurring in Tropical America (genera <em>Canomaculina</em>, <em>Parmotrema</em>, <em>Rimelia</em>, <em>Rimeliella</em>). Available from: http://www.bgbm.org/sipman/keys/neoparmo.htm (Last update 28 October 2005; accessed October 2008)</p>
<p>Sequiera, S. (2003) <em>Taxonomy and ecology of lichens of Silent Valley National Park, southern Western Ghats, India</em>. Ph.D. Thesis. FRI, Dehra Dun, India.</p>
<p>Spielmann, A.A. (2009) <em>Estudos taxonômicos em Parmotrema s.l. (Parmeliaceae, Ascomycota liquenizados) com ácido salazínico.</em> PhD. Thesis. Sao Paulo. 152 pp.</p>
<p>Stirton, J. (1877–1878) On certain lichens belonging to the genus <em>Parmelia</em>. <em>Scottish Naturalist </em>4: 200–203, 252–254, 298–299.</p>
<p>Taylor, T. (1836) The Musci, Hepaticae and Lichenes. <em>In:</em> Mackay, J.T. (Ed.) <em>Flora Hibernica</em>. William Curry Jun and Company, Dublin, 156 pp.</p>
<p>Taylor, T. (1847) New lichens, principally from the Herbarium of Sir William J. Hooker. <em>The London Journal of Botany </em>6: 148–197.</p>
<p>Walker, F.J. & James, P.W. (1980) A revised guide to microchemical techniques for the identification of lichen products. <em>British Lichen Society Bulletin </em>46 (Supplement): 13–29.</p>
<p>Zahlbruckner, A. (1926) <em>Lichenes, Spezieller Teil.</em> <em>In</em>: Engler, A. & Prantl, K. (Eds.) <em>Die natürlichen Pflanzenfamilien</em>, 2nd ed. v. 8. Wilhelm Engelmann, Leipzig. 270 pp.</p>
<p>Zahlbruckner, A. (1930) <em>Catalogus lichenum universalis</em>. v. 6. Gebrüder Borntraeger, Leipzig. 618 pp.</p>